Configuration
4.10 Data points
SIMATIC CC7
108
Operating Instructions, 10/2019, C79000-G8976-C503-02
When using other data types in the device and in downstream applications, you must map
and interpret the data read from the station in a user-specific manner.
Restrictions for MindConnect IoT Extension
The following data is not supported:
●
Time stamp
●
With S7-LINT / S7-ULINT:
Integers from 2
63
to 2
64
The following data types are only supported when they are transferred as event:
●
Bool
●
String
4.10.3
Import tags
In addition to manual data point configuration, you can import the tag information using a file
exported from STEP 7 for S7 stations.
Note that all data points manually configured beforehand are deleted during import of tag
information from STEP 7 files.
After importing tags from STEP 7 files, you can manually configure more data points.
Observe the following limits for the import:
●
Maximum number of tags per file: 5000
●
Maximum number of tags per station: 5000
The value also applies to the import of multiple files.
●
Maximum number of elements per S7 array: 500
Requirement: Creating CPU tags in STEP 7
As a prerequisite for using the function, you need to have created tags or symbols in the
respective CPU in your STEP 7 project.
●
STEP 7 Professional (TIA Portal)
–
DB tags
The "Optimized block access" option must be disabled in DBs.
–
PLC tags
●
STEP 7 V5.6
–
DB tags
–
Symbols